Subject: Juvenile Cooper's or Goshawk response
Date: Nov 27 09:03:11 2000
From: sanjer at televar.com - sanjer at televar.com


Since all the replies were private and not to the list and now people
are asking what the others had to say I am posting the replies without
the name of the sender.

I really appreciate all the input on this subject. Next time I think I
will request that replies be posted to the list so that others may
benefit from the information.

We will be back from Wenatchee friday evening. Thanks again.

Here are a couple of the requests for information.

Could you give a run-down on the diagnostic traits that identify
this bird as a goshawk?
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I am sure that I am not the only one with a curious(wanting to
learn)nature!!!!
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COOPER'S HAWK 4 votes

The back is all slate gray. A Goshawk would have spots and speckling
on the back. Also the underreports should have broader streaks on a
creamy or buffy background. Imm Goshawks always look like they're
wearing camouflage to me. The tail pattern does look rather jagged,
but I can only see the base of the tail from the photo. Anyway, I
place my ballot in the Cooper's Hawk box.
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I looked at those pictures and thought
they looked exactly like the female Cooper's I had the pleasure of
studying up close and personal in the lab.
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If you have a photo where you can see the undertail coverts, gos
usually have obvious streaks, Coopers are usually pure white. Also I
can't quite make out the tail but gos have "wavy" tail bands, Coopers
more straight. Based on the size of the bird in comparison to the
quail, and the subdued white eyeline, I'd go with a female Cooper's
Hawk. I think it appears larger as it is mantling slightly,
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NORTHERN GOSHAWK 8 votes

Size of tarsus makes it look like juvenile Goshawk to me.
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I'd go with an immature Northern Goshawk
leg size is just too big for a Cooper's Hawk.
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I vote for juvenile Goshawk, based on the profile of the
head (no dark cap, no crest, shape) and the wavy tail bands in the
profile photo on the right.
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It looks like an imm. Goshawk to me. The head is too husky looking
for a Copper's and so is the body.
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If it were a Cooper's the side of the head should be tawny colored,
also belly should be unstreaked. White eyebrow on immature Goshawk is
a variable feature.
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Looks like a gos to me from the photo, mostly due to the fact that the
streaking goes way down to the belly and on the flanks. The tails
banding also appears to be wavy.
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I looked up the size of the quail, 10" and it could possibly be a
female coopers, or male goshawk, definitely immature, the heaviness of
the legs, and largeness of the bill seem more goshawk like to me. the
legs of a coopers are much thinner, the close up of the eyeline does
appear prominent. but my guess male goshawk
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Definitely a gos.
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Jerry and Sandy Converse
Grand Coulee, WA.
mailto:sanjer at televar.com
NEED A BIRD FEEDER? http://ConverseCorner.com

Romans 6:23
Never be afraid to try something new.
Remember, amateurs built the Ark and
Professionals built the Titanic.